1. Convenient to install2. More economic than other nitrogen supplying methods3. The macaronis design realizes the automatic running4. Peak value / the security system of the trouble5. The high-quality components and parts are the reliable assurance of steady operation6. Nitrogen content shows in succession, equipping the transfinite automatic alarm system7. The high-quality carbon molecular sieve8. The advanced loading technology guarantees the service life of equipments9. The automatic alarm system for sinking of the carbon molecule sieve10. The unqualified nitrogen automatic emptying system11. Differential pressure indication, concentrating blow down system12. The unique inter-circle switching techniques' of system